CN105897181A - High-speed power amplifier device for digital signal transmitter - Google Patents
High-speed power amplifier device for digital signal transmitter Download PDFInfo
- Publication number
- CN105897181A CN105897181A CN201610351571.9A CN201610351571A CN105897181A CN 105897181 A CN105897181 A CN 105897181A CN 201610351571 A CN201610351571 A CN 201610351571A CN 105897181 A CN105897181 A CN 105897181A
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- Prior art keywords
- power
- power amplifier
- amplifier
- outfan
- voltage
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0288—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using a main and one or several auxiliary peaking amplifiers whereby the load is connected to the main amplifier using an impedance inverter, e.g. Doherty amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a high-speed power amplifier device for a digital signal transmitter. The high-speed power amplifier device comprises a high-speed deserializer, a high-speed serializer and M power amplifiers which are connected in parallel, wherein the input end of each power amplifier is connected to the high-speed deserializer and the output end of each power amplifier is connected to the high-speed serializer; each power amplifier is connected to a voltage control module used for providing working voltage of the power amplifier; and the input end of the voltage control module is connected to a corresponding output serial port of the high-speed deserializer, wherein M is a positive integral multiple of 4. The high-speed power amplifier device for the digital signal transmitter has high efficiency and excellent linear characteristic, the power supply voltage of the power amplifier synchronously changes along with the amplitude of an input signal, the signal amplification is guaranteed while the power consumption of the power amplifier is reduced, and the calorific value of the power amplifier is reduced.
Description
Technical field
The present invention relates to a kind of power amplifier device, be specifically related to a kind of high speed digital signals transmitter merit
Rate amplifying device.
Background technology
Along with the development of science and technology, communication achieves the unprecedented growth of data throughout.Present stage
The requirement that power launched by transmitter by the communications industry is more and more higher, and present communications speed is increasingly
Height, response speed and the efficiency of transmitter power amplifying device are had higher requirement by this；Meanwhile,
Non-linear another problem being transmitter power amplifying device and facing.High-power signal is loaded at input
Time, if this signal can not linearly be amplified by transmitter power amplifying device, in fact it could happen that gain saturatiuon and
The situation of distortion；It addition, in the signal of transmitter transmitting, the level of part signal is maintained at lower value,
Only part signal level reaches peak power, and therefore, power amplifier can only be when reaching peak power
Thering is provided peak efficiency, in the most of the time, power amplifier all cannot effectively utilize the power of input, nothing
Heat energy can be changed into power, cause the waste of electric energy.
The linearity of power amplifier and efficiency are the emphasis of design power amplifier.At present, it is to pass through
Doherty technology solves the efficiency of transmitter power amplifying device.The general structure of Doherty
Being made up of 2 power amplifiers: main power amplifier, an auxiliary power amplifier, the outfan at main power amplifier connects to be had
90 ° of quarter wavelength impedance transducers, connect at the input of auxiliary power amplifier and have 90 ° 1/4th
Wavelength impedance transformers.Main power amplifier is operated in B class or AB class, and auxiliary power amplifier is operated in C class.Two
Individual power amplifier does not takes turns to operate, but main power amplifier works always, and auxiliary power amplifier just works to the peak value set
(this power amplifier is also called peak ampli-fier).Although using Doherty power amplifier allow
Transmitter power amplifying device keeps greater efficiency in bigger dynamic range, but its linearity is poor,
When transmitting high data rate, its response speed is very slow, cannot meet the requirement of high data rate.
Summary of the invention
For above-mentioned deficiency, the technical problem to be solved is to provide a kind of two-forty numeral letter
Number transmitter power amplifying device, this power amplifier device has the good time to high rate data signals
Responding ability and delivery efficiency.
For solving the problems referred to above, the present invention is achieved through the following technical solutions:
A kind of high speed digital signals transmitter power amplifying device, including high speed serial parallel exchange device, at a high speed
The power amplifier of parallel-to-serial converter and M setting parallel with one another, the input of each power amplifier with
High speed serial parallel exchange device connects, its outfan is connected with high speed parallel-to-serial converter, on each power amplifier
Connect and have to provide the voltage control module of the running voltage of power amplifier, described voltage control module
Input be connected with the output serial ports of corresponding high speed serial parallel exchange device, wherein M is the positive integer of 4
Numerical value again.
In such scheme, described voltage-operated device includes demodulator, D/A converter and voltage amplifier,
The outfan of described demodulator is connected with the input of D/A converter, the outfan of D/A converter and electricity
The input of pressure amplifier connects, and the outfan of voltage amplifier connects with the main power source D of power amplifier
Connect.
In such scheme, further, described voltage-operated device also includes voltage detection module, process
Chip and control switch, the input of described voltage detection module is connected with the outfan of voltage amplifier,
The described input of process chip be connected with the outfan of voltage detection module, process the outfan of chip with
Controlling switch to connect, the outfan of described contact switch and a stand-by power supply S connect, this stand-by power supply S
It is connected with power amplifier.
In such scheme, each power amplifier includes that three power splitters, carrier amplifier and 2 are parallel with one another
The peak amplifier arranged, the input of described carrier amplifier and the outfan of three power splitters connect, it
Outfan connects a quarter wavelength impedance transducer and this quarter wavelength impedance transducer
Being connected with signal output part, the input of each peak amplifier and the outfan of three power splitters connect, it
Outfan is connected with signal output part by after a quarter wavelength impedance transducer.
In such scheme, M is can be with any number in 4,8 or 16.
The operation principle of the present invention is:
1) high-speed serial digital signal is converted into multi-path low speed also by high speed serial parallel exchange device by the present invention
Row number signal, multi-path low speed parallel digital signal inputs the power amplifier of correspondence respectively to carry out power and puts
Greatly, the signal input high speed parallel-to-serial converter after amplification, signal is reverted to serial signal；
2) carrying out 1) in serioparallel exchange after, the present invention by voltage control module simultaneously to power
The supply voltage of amplifier is controlled, and is i.e. solved by the parallel digital signal received by demodulator
Adjust, demodulate raw digital signal, by D/A converter, raw digital signal is transformed into analog voltage
Signal, then analog voltage signal carried out after power amplification as described power amplifier by voltage amplifier
Power supply, power amplifier works.Supply voltage waveform and parallel digital signal due to power amplifier
The waveform of " envelope " is identical, and the supply voltage of the most described power amplifier will according to this parallel signal (i.e.
Input signal) amplitude synchronize change, when signal reaches power peak, the confession of described power amplifier
Piezoelectric voltage also reaches peak value, and when the power of signal is relatively low, the supply voltage of described power amplifier also keeps
Relatively low.So can ensure that the power of signal normally amplifies, and also reduces described power amplifier simultaneously
Supply voltage, save electric energy, also reduce the caloric value of power amplifier, it is ensured that power amplification
Device will not be due to overheated and damage.
The invention have the benefit that
1, the three road Doherty circuit that power amplifier is new structure that the present invention uses, with tradition
Three road Doherty circuit are compared, and it can obtain high efficiency amplification in the range of bigger rollback.
2, two-forty signal is become multi-path low speed by this high speed digital signals transmitter power amplifying device
Rate signal, and amplifier is to the linear degree of the amplification of low-rate signal and time response velocity fails, the farthest
Higher than linear degree and the time response velocity fails of the amplification to two-forty signal, by high speed signal is dropped
For the mode restored after carrying out power amplification after low speed signal, improve efficiency and the time of amplifier
Response speed, and make amplifier the most also can keep good linear characteristic.
3, the digital signal that transmitter is sent by this high speed digital signals transmitter power amplifying device enters
Row demodulation, carries out voltage amplification after obtaining raw digital signal, powers for described power amplifier, it is achieved
The supply voltage of power amplifier can be followed the amplitude of input signal and be synchronized change, ensure that signal is put
While great, reduce the power consumption of power amplifier, save electric energy, also reduce power amplifier
Caloric value, it is ensured that power amplifier will not quit work because of overheated.
Accompanying drawing explanation
Fig. 1 is the composition structured flowchart of this high speed digital signals transmitter power amplifying device.
Fig. 2 is that the composition of each voltage control module connects block diagram.
Fig. 3 is the structured flowchart of each power amplifier.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings the present invention is further explained explanation, but not in order to
Limit the present invention.
As it is shown in figure 1, a kind of high speed digital signals transmitter power amplifying device, including going here and there also at a high speed
The power amplifier of transducer, high speed parallel-to-serial converter and M setting parallel with one another, each power amplification
The input of device is connected with high speed serial parallel exchange device, its outfan is connected with high speed parallel-to-serial converter, each
Connect on power amplifier and have to provide the voltage control module of the running voltage of power amplifier, described
The input of voltage control module is connected with the output serial ports of corresponding high speed serial parallel exchange device, wherein M
It is the numerical value of the positive integer times of 4.M is any number in 4,8 or 16, and in the present embodiment, M is
8, the parallel signal of the most described high speed serial parallel exchange device output is 8 tunnels.
As in figure 2 it is shown, described voltage-operated device includes demodulator, D/A converter and voltage amplifier,
The outfan of described demodulator is connected with the input of D/A converter, the outfan of D/A converter and electricity
The input of pressure amplifier connects, and the outfan of voltage amplifier connects with the main power source D of power amplifier
Connect.The supply voltage of each power amplifier can be made parallel with input by described voltage-operated device
The change of signal and synchronize change, when the highest signal or low signal, main power source D has voltage to produce, for merit
Rate amplifier is powered, then power amplifier work；And during no signal, main power source D do not have voltage produce,
Power amplifier does not works.
For preventing owing to the signal of input is the most weak, i.e. can not reach power after voltage amplifier amplifies and put
The startup voltage of big device, causes the situation that zero-signal exports.In the present embodiment, described voltage-operated device
Also include voltage detection module, process chip and control switch, the input of described voltage detection module with
The outfan of voltage amplifier connects, the input of described process chip and the outfan of voltage detection module
The outfan connecting, processing chip is connected with controlling to switch, the outfan of described contact switch and standby
Power supply S connects, and this stand-by power supply S is connected with power amplifier.Voltage is gathered by voltage detection module
The analog voltage signal of amplifier out also is sent to process chip, and described process chip is by this voltage
Signal is compared with the operational voltage value of setting: when this voltage signal is less than the operational voltage value set,
Send the instruction starting stand-by power supply S to control switch, now power amplifier also can normally work；And
When this voltage signal is higher than the operational voltage value set, send closedown stand-by power supply S's to controlling switch
Instruction, is now powered by main power source D.
As it is shown on figure 3, each power amplifier includes that three power splitters, carrier amplifier and 2 are parallel with one another
The peak amplifier arranged, the input of described carrier amplifier and the outfan of three power splitters connect, it
Outfan connects a quarter wavelength impedance transducer and this quarter wavelength impedance transducer
Being connected with signal output part, the input of each peak amplifier and the outfan of three power splitters connect, it
Outfan is connected with signal output part by after a quarter wavelength impedance transducer.
These are only explanation embodiments of the present invention, be not limited to the present invention, for this area
For technical staff, all within the spirit and principles in the present invention, any amendment of being made, equivalent,
Improve, should be included within the scope of the present invention.
Claims (5)
1. a high speed digital signals transmitter power amplifying device, it is characterised in that: include height
Speed deserializer, high speed parallel-to-serial converter and the power amplifier of M setting parallel with one another, each
The input of power amplifier is connected with high speed serial parallel exchange device, its outfan and high speed parallel-to-serial converter
Connecting, each power amplifier connects to provide the voltage control of the running voltage of power amplifier
The output string of molding block, the input of described voltage control module and corresponding high speed serial parallel exchange device
Mouthful connecting, wherein M is the numerical value of positive integer times of 4.
High speed digital signals transmitter power amplifying device the most according to claim 1, its
It is characterised by: described voltage-operated device includes demodulator, D/A converter and voltage amplifier, institute
The input of the outfan and D/A converter of stating demodulator is connected, the outfan of D/A converter and electricity
The input of pressure amplifier connects, and the outfan of voltage amplifier connects with the main power source D of power amplifier
Connect.
High speed digital signals transmitter power amplifying device the most according to claim 2, its
It is characterised by: described voltage-operated device also includes voltage detection module, processes chip and control switch,
The input of described voltage detection module is connected with the outfan of voltage amplifier, described process chip
Input is connected, processes the outfan of chip and connects with controlling switch with the outfan of voltage detection module
Connecing, the outfan of described contact switch and a stand-by power supply S connect, and this stand-by power supply S is put with power
Big device connects.
High speed digital signals transmitter power amplifying device the most according to claim 1, its
It is characterised by: each power amplifier includes three power splitters, carrier amplifier and 2 settings parallel with one another
Peak amplifier, the outfan of the input of described carrier amplifier and three power splitters connects, it is defeated
Go out to hold connection to have a quarter wavelength impedance transducer and this quarter wavelength impedance transducer
It is connected with signal output part, the outfan of the input of each peak amplifier and three power splitters connects,
Its outfan is connected with signal output part by after a quarter wavelength impedance transducer.
High speed digital signals transmitter power amplifying device the most according to claim 1, its
It is characterised by: M is any number in 4,8 or 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610351571.9A CN105897181B (en) | 2016-05-24 | 2016-05-24 | A kind of high speed digital signals transmitter power amplifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610351571.9A CN105897181B (en) | 2016-05-24 | 2016-05-24 | A kind of high speed digital signals transmitter power amplifying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105897181A true CN105897181A (en) | 2016-08-24 |
| CN105897181B CN105897181B (en) | 2018-11-09 |
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ID=56717821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610351571.9A Expired - Fee Related CN105897181B (en) | 2016-05-24 | 2016-05-24 | A kind of high speed digital signals transmitter power amplifying device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105897181B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698675A (en) * | 2018-12-27 | 2019-04-30 | 电子科技大学 | A kind of circuit structure of customized power transistor C-V characteristic |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741373A (en) * | 2004-08-26 | 2006-03-01 | 日本电气株式会社 | The circuit that is used for parallel operation of doherty amplifiers |
| CN101207366A (en) * | 2007-12-17 | 2008-06-25 | 华为技术有限公司 | High efficiency power amplifier |
| CN101577528A (en) * | 2008-05-09 | 2009-11-11 | 克里公司 | Progressive power generating amplifiers |
| US20110018628A1 (en) * | 2009-07-23 | 2011-01-27 | Youngoo Yang | Dynamic bias supply devices |
| US20110175677A1 (en) * | 2010-01-20 | 2011-07-21 | Postech Academy-Industry Foundation | Distributed doherty power amplifier |
| CN102148563A (en) * | 2010-02-10 | 2011-08-10 | 华为技术有限公司 | Tracking power supply, power control method and communication equipment |
| CN102187570A (en) * | 2008-08-19 | 2011-09-14 | 克里公司 | Integrated circuit with parallel sets of transistor amplifiers having different turn on power levels |
| CN102427332A (en) * | 2011-11-28 | 2012-04-25 | 华为技术有限公司 | Doherty power amplifier and method and equipment for improving power amplification efficiency of Doherty power amplifier |
| CN103178786A (en) * | 2011-12-26 | 2013-06-26 | 瑞典爱立信有限公司 | Multiway Doherty amplifier |
| CN103370874A (en) * | 2010-12-14 | 2013-10-23 | 天工方案公司 | Apparatus and methods for capacitive load reduction |
| CN103580623A (en) * | 2012-08-10 | 2014-02-12 | 中兴通讯股份有限公司 | Radiofrequency power amplifier device and radiofrequency power amplifying method |
| CN103597760A (en) * | 2011-06-23 | 2014-02-19 | 高通股份有限公司 | Power supply generator with noise cancellation |
-
2016
- 2016-05-24 CN CN201610351571.9A patent/CN105897181B/en not_active Expired - Fee Related
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741373A (en) * | 2004-08-26 | 2006-03-01 | 日本电气株式会社 | The circuit that is used for parallel operation of doherty amplifiers |
| CN101207366A (en) * | 2007-12-17 | 2008-06-25 | 华为技术有限公司 | High efficiency power amplifier |
| CN101577528A (en) * | 2008-05-09 | 2009-11-11 | 克里公司 | Progressive power generating amplifiers |
| CN102187570A (en) * | 2008-08-19 | 2011-09-14 | 克里公司 | Integrated circuit with parallel sets of transistor amplifiers having different turn on power levels |
| US20110018628A1 (en) * | 2009-07-23 | 2011-01-27 | Youngoo Yang | Dynamic bias supply devices |
| US20110175677A1 (en) * | 2010-01-20 | 2011-07-21 | Postech Academy-Industry Foundation | Distributed doherty power amplifier |
| CN102148563A (en) * | 2010-02-10 | 2011-08-10 | 华为技术有限公司 | Tracking power supply, power control method and communication equipment |
| CN103370874A (en) * | 2010-12-14 | 2013-10-23 | 天工方案公司 | Apparatus and methods for capacitive load reduction |
| CN103597760A (en) * | 2011-06-23 | 2014-02-19 | 高通股份有限公司 | Power supply generator with noise cancellation |
| CN102427332A (en) * | 2011-11-28 | 2012-04-25 | 华为技术有限公司 | Doherty power amplifier and method and equipment for improving power amplification efficiency of Doherty power amplifier |
| CN103178786A (en) * | 2011-12-26 | 2013-06-26 | 瑞典爱立信有限公司 | Multiway Doherty amplifier |
| CN103580623A (en) * | 2012-08-10 | 2014-02-12 | 中兴通讯股份有限公司 | Radiofrequency power amplifier device and radiofrequency power amplifying method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109698675A (en) * | 2018-12-27 | 2019-04-30 | 电子科技大学 | A kind of circuit structure of customized power transistor C-V characteristic |
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| Publication number | Publication date |
|---|---|
| CN105897181B (en) | 2018-11-09 |
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